
package org.jbox2d.callbacks;

import org.jbox2d.dynamics.World;
import org.jbox2d.particle.ParticleGroup;

public interface ParticleDestructionListener {
	/** Called when any particle group is about to be destroyed. */
	void sayGoodbye (ParticleGroup group);

	/** Called when a particle is about to be destroyed. The index can be used in conjunction with
	 * {@link World#getParticleUserDataBuffer} to determine which particle has been destroyed.
	 * 
	 * @param index */
	void sayGoodbye (int index);
}
